Proportional pressure control valve

US7516756B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Karlheinz Mayr · Zell im Wiesental, DE
• Thilo Schmidt · Meckenbeuren, DE
• Walter Kill · Friedrichshafen, DE
• Markus Moosmann · Grünkraut, DE

Key dates

• Filing date: Aug 19, 2004
• Grant date: Apr 14, 2009
• Expiry date: Mar 12, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/87217
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

Proportional pressure control valve with a magnetic part and a valve part, the valve part has an inflow opening for the inflow stream, a first outflow opening for the filling stream, and a second outflow opening for the tank volume stream, and has a ball seat, a flat seat with an opening, a closing part for controlling the throughput quantity through the opening of the flat seat, and a stream diverter. The inflow opening faces away from the magnetic part and coaxially to its longitudinal axis, and the outflow openings are constructed on the side wall of the valve part radially to its longitudinal axis, so that fluid flowing from through the valve is exposed to a diversion of a maximum of 90°. The fluid, after flowing through the ball seat and to and through the stream diverter, experiences a diversion of less than 30°.